2004 CHEVROLET AVALANCHE seats

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-2
Rear Seats
............................................... 1-7
Safety Belts
.............................................. 1-9
Child Restraints
.......................................1-30
Air Bag Systems
......................................1-51
Restraint System Check
............................1-67
Features and Controls..................................... 2-1
Keys
........................................................ 2-3
Doors and Locks
....................................... 2-8
Windows
.................................................2-25
Theft-Deterrent Systems
............................2-27
Starting and Operating Your Vehicle
...........2-30
Mirrors
....................................................2-49
OnStar
®System
......................................2-59
HomeLink®Transmitter
.............................2-61
Storage Areas
.........................................2-65
Sunroof
..................................................2-89
Vehicle Personalization
.............................2-90
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-4
Climate Controls
......................................3-22
Warning Lights, Gages, and Indicators
........3-33
Driver Information Center (DIC)
..................3-53
Audio System(s)
.......................................3-72Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-52
Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-5
Checking Things Under the Hood
...............5-10
Rear Axle
...............................................5-55
Four-Wheel Drive
.....................................5-56
Front Axle
...............................................5-57
Bulb Replacement
....................................5-58
Windshield Wiper Blade Replacement
.........5-67
Tires
......................................................5-68
Appearance Care
...................................5-111
Vehicle Identication
...............................5-119
Electrical System
....................................5-119
Capacities and Specications
...................5-128
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-12
Index................................................................ 1
2004 Chevrolet Avalanche Owner ManualM

Vehicle Damage Warnings
Also, in this manual you will nd these notices:
Notice:These mean there is something that could
damage your vehicle.
A notice tells about something that can damage the
vehicle. Many times, this damage would not be covered
by your vehicle’s warranty, and it could be costly. But
the notice will tell what to do to help avoid the damage.
When you read other manuals, you might see
CAUTION and NOTICE warnings in different colors or in
different words.
There are also warning labels on the vehicle. They use
the same words, CAUTION or NOTICE.
Vehicle Symbols
The vehicle has components and labels that use
symbols instead of text. Symbols are shown along with
the text describing the operation or information
relating to a specic component, control, message,
gage, or indicator.
If you need help guring out a specic name of a
component, gage, or indicator, reference the following
topics:
Seats and Restraint Systems in Section 1
Features and Controls in Section 2
Instrument Panel Overview in Section 3
Climate Controls in Section 3
Warning Lights, Gages, and Indicators in Section 3
Audio System(s) in Section 3
Engine Compartment Overview in Section 5
iv

Front Seats......................................................1-2
Manual Passenger Seat..................................1-2
Power Seats..................................................1-2
Power Lumbar...............................................1-3
Heated Seats.................................................1-4
Reclining Seatbacks........................................1-5
Head Restraints.............................................1-7
Rear Seats.......................................................1-7
Rear Seat Operation.......................................1-7
Safety Belts.....................................................1-9
Safety Belts: They Are for Everyone.................1-9
Questions and Answers About Safety Belts......1-13
How to Wear Safety Belts Properly.................1-14
Driver Position..............................................1-14
Safety Belt Use During Pregnancy..................1-22
Right Front Passenger Position.......................1-23
Center Front Passenger Position.....................1-23
Rear Seat Passengers..................................1-24
Rear Safety Belt Comfort Guides for
Children and Small Adults..........................1-27
Safety Belt Extender.....................................1-29
Child Restraints.............................................1-30
Older Children..............................................1-30
Infants and Young Children............................1-32
Child Restraint Systems.................................1-36
Where to Put the Restraint.............................1-38
Top Strap....................................................1-40Top Strap Anchor Location.............................1-41
Lower Anchorages and Top Tethers
for Children (LATCH System)......................1-42
Securing a Child Restraint Designed
for the LATCH System...............................1-44
Securing a Child Restraint in a
Rear Seat Position....................................1-44
Securing a Child Restraint in the
Center Front Seat Position..........................1-46
Securing a Child Restraint in the
Right Front Seat Position............................1-47
Air Bag Systems............................................1-51
Where Are the Air Bags?...............................1-54
When Should an Air Bag Inate?....................1-57
What Makes an Air Bag Inate?.....................1-59
How Does an Air Bag Restrain?.....................1-59
What Will You See After an
Air Bag Inates?.......................................1-60
Passenger Sensing System............................1-62
Servicing Your Air Bag-Equipped Vehicle.........1-66
Adding Equipment to Your
Air Bag-Equipped Vehicle...........................1-66
Restraint System Check..................................1-67
Checking Your Restraint Systems...................1-67
Replacing Restraint System Parts
After a Crash............................................1-68
Section 1 Seats and Restraint Systems
1-1

Front Seats
Manual Passenger Seat
If your vehicle has a manual front passenger split bench
seat, you can adjust it with this lever located at the
front of the seat.
Lift the lever to unlock the seat and use your body to
slide the seat to where you want it. Release the
lever and try to move the seat with your body to make
sure that the seat is locked into place.
Power Seats
If your vehicle has power seat(s), the controls are
located on the outboard edge of the front seats.
1-2

You can also reshape the back wing area of the lower
seatback.
To increase support in the wing area of the lower
seatback, press and hold the top of the control.
Let go of the control when the lower seatback
reaches the desired level of support.
To decrease support in the wing area of the lower
seatback, press and hold the bottom of the control.
Let go of the control when the lower seatback
reaches the desired level of support.
Heated Seats
Your vehicle may have
heated front seats.
The buttons used to control
this feature are located
on the front doors.
The engine must be
running for the heated seat
feature to work.
To heat the entire seat, press the horizontal button with
the heated seat symbol. Press the button to cycle
through the temperature settings of high, medium and
low and to turn the heated seat off. Indicator lights
will glow to designate the level of heat selected, three for
high, two for medium, and one for low.
1-4

The low setting warms the seatback and cushion until
the seat temperature is near body temperature.
The medium and high settings heat the seatback and
seat cushion to a slightly higher temperature. You will be
able to feel heat in about two minutes.
To heat only the seatback, press the vertical button with
the heated seatback symbol. An indicator light on the
seatback button will glow to designate that only the
seatback is being heated. Additional presses of
the seatback button will cycle through the heat levels for
the seatback only. Press the horizontal button again
to heat the whole seat.
The heated front seats will shut off automatically when
the ignition is turned off.Reclining Seatbacks
To adjust the front seatback, lift the lever. The lever is
located on the outboard side of the seat cushion.
Release the lever to lock the seatback where you want
it. Lift the lever without pushing on the seatback and
the seatback will go to an upright position.
If your vehicle has power seats with a power recliner,
seePower Seats on page 1-2for further information
on how to operate the reclining seatback feature.
1-5

Head Restraints
Adjust your head restraint so that the top of the restraint
is closest to the top of your head. This position
reduces the chance of a neck injury in a crash.
The rear seat head restraints in your vehicle are
adjustable. They work the same as the front seat head
restraints.
Rear Seats
Rear Seat Operation
The rear seat is a 60/40 split rear seat that can be
folded to give you more cargo space and access to the
folding midgate. SeeMidgate on page 2-14for more
information on operation of the folding midgate.
To fold either side of the seat do the following:
1. Push the rear head restraints all the way down.
2. Pull the seat loop
located where the
seatback and
seat cushion meet.
The seat cushion will
release and allow
you to tilt it toward the
front of the vehicle.
1-7

3. Grasp the seatback and pull it toward the front of
the vehicle. Push it down until it is at. You may
have to move the front seats forward slightly to
do this.
4. Repeat the procedure for the other side.
To return the seats to the normal position, pull the
seatback up and fold the seat cushion down.
{CAUTION:
If the seatback is not locked, it could move
forward in a sudden stop or crash. That could
cause injury to the person sitting there. Always
press rearward on the seatback to be sure it is
locked.
{CAUTION:
A safety belt that is improperly routed, not
properly attached, or twisted will not provide
the protection needed in a crash. The person
wearing the belt could be seriously injured.
After raising the rear seatback, always check
to be sure that the safety belts are properly
routed and attached, and are not twisted.
1-8